摘要
在Gamma分布条件下 ,研究了SAR目标检测 ,得到了阈值系数与恒虚警关系 ,提出了阈值选择理论及其简单实现方法 ,优化了杂波均值估计并给出了其无偏鲁棒算法 ,这样在目标检测中不经过噪声抑制过程但具有抗噪能力 ,并且参数估计没有偏差。
In this paper, the relationship between threshold coefficient and constant false alarm probability (CFAR) is obtained after SAR target detection is analyzed according to Gamma distribution. The theory and simple realizing approach of selecting threshold coefficient are proposed. The robust way of optimizing clutter's mean is given, which has de-noising ability without processing of de-noising in target detection. The estimating method hasn't error. Experiment results show the approach in the paper is better than the two-parameter CFAR algorithm.\;
出处
《系统工程与电子技术》
EI
CSCD
2000年第12期21-23,共3页
Systems Engineering and Electronics
